processo para a regeneração de um auxiliar de filtração

• Main Authors: Helmut Meffert, Julia Brodersen, Ralf Mar, Robert Bayer, Ates Erk, Hermann Josef Feise, Jörg Kress, Marianna Pierobon, Tobias Petsch
• Format: Patent
• Language: Portuguese
• Published: 18.04.2017
• Subjects: AGEING; BEER; BIOCHEMISTRY; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLARIFICATION; ENZYMOLOGY; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; PASTEURISATION; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRESERVATION; PURIFICATION; SEPARATION; SPIRITS; STERILISATION; THEIR RELEVANT APPARATUS; TRANSPORTING; VINEGAR; WINE

Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer, (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a...